hambleton



(No Model.)

- P. H. HAMBLETON.

REGISTERING APPARATUS.

v N 360,291 Patented Mar.29, 1887.

UNITED STATES PATENT O FICE.

FRANCIS H. HAMBLETON, OF BALTIMORE, MARYLAND.

REGISTERING APPARATUS.

.E5PZILCIF'ICA'I'ION "forming part of Letters Patent No. 360,291, dated March 29, 1887.

Application filed March 15, 1886. Serial No. 105,236. (No model.)

To all whom, it may concern:

Be it known that I, FRANCIS H. HAMBLETON, of the city of Baltimore and State of Maryland, have invented a new and useful Improvement in Recording Apparatus, which consists in a novel arrangement of pencil-holder, by means of which the recording is made more accurate and reliable, of which the following is a specification.

By my arrangement the friction is practically done away with. I obtain a free range of pencil without lost motion and maintain a f very uniform pressure-upon the pencil, the result being very reliable recording. This device may be used upon any kind of recording apparatus for which it is adapted.

The following is a full description of my invention and its mode of operation, as illustrated by the accompanying drawings, of which Figure 1 shows an isometric view of an ordinary annular siphon-gage for recording gas-pressure, and shows a tank partly broken away, float, upright bar with guiding-wheels, pencil-holder, and dial; Fig. 2, an upright side View of the bar,- a-rod supportingthe pencil-holder, dial, and guide-wheels; Fig. 3, a sectional view of bracket, pin, and bar taken through line as of Fig. 2. Fig. 4 shows a modified form of the suspending device for the pencil.

The drawing Fig. 1 represents the ordinary form of siphon-gage, consisting of one tank within another, leaving a cylindrical space between them.

A represents an outer tank, and A an inner tank, anda a the space between them. Aseries moving the dial-plate H, to which is attached the dial h by means of the thumb-screw h and washer k is also well known and in common use in recording devices, and needs no further, description, as my invention relates to the pencilholder and its attachments.

The brackets J, secured to the head of the tank A, support the guide-wheels j, which steady and guide the bar 0 in its movement up and down. Upon the top of this bar 0, I construct a fork, c, in order to pass the thumbscrew h. To the upper end of the forked bar is pivoted the lever 0*, also forked at its ends, adjoining the forked bar. The arm of the lever c carries an adjustable weight,c". The means of adjustment (shown in Fig. 1) is a screwthread out upon a port-ion of the lever, and the weight 0 being provided with a corresponding thread, the weight is screwed upon the arm and allowed to remain at any point desired. The other arm of the lever c is provided at its end with a split pencil-holder, o which is opened or closed by means of the thumb-screw c.

P is the pencil, held firmly in the pencilholder. The forked ends of the bar 0 and the lever-arm 0* are perforated, so as to admit a pin, 0 The use of this pin is to hold the pencil or the pencil-levers and keep them from moving during transportation or while removing or adjusting the pencil.

The brackets J have upright projections j which are also perforated at their upper ends. A hole, a in the bar 0 admits a pin, j which passes through the holes in the uprights j", when it is required to steady and hold the bar 0 during transportation or when required.

The end of the bar 0 is only forked in order that it may pass the thumb-screw on the arbor of the dial. Were the dial a simple plane sur face this fork would not be necessary. The bar might be made plane and thelever c pivoted at the top, as shown in Fig. 4.

That I claim is 1. In a pressure-recording device, the float B, provided with the upright bar 0,-having a pencil-holder pivoted to and suspended from its upper end and constructed in the form of a bell-crank, the whole arranged to travel in a vertical line, in combination with means for securing the pencil rigidly in the holder, and means for increasing and diminishing the pressure upon the pencil, substantially as described.

2. In a pressurerecording device, the combination of the float B, the upright bar 0, having a pencil-holder pivoted to and suspended from its upper end, constructed in the form of a bell crank, and having the arms 0 and c, the arm a being provided with the split tube a and thumb-screw c and the arm 0' provided withthe adjustable weight 0 the whole arranged and operating substantially as described. I

3. In a pressure-recording device, the tank A, the brackets J, mounted upon said tank A, the guide-wheelsj, journaled in the brackets, in combination with the float'B, carrying the bar 0, so as to travel vertically, the said bar having at its upper end a pencil-holder pivotedto and suspended therefrom, substantially as described.

4. In a pressure-recording apparatus provided with a revolving dial, the bar 0, traveling vertically, and actuated by the float B, and having a pencil-holder suspended from and pivoted to its upper end, consisting of a lever having two arms, 0 and c, the latter perforated, the bar 0, also perforated, and the pin 0 passing through the bar 0 and arm 0, substantially as described.

5. In a registering apparatus, the bracket J, provided with the uprights j perforated at their ends, the bar C, also perforated, as at 0 and the pinj, passing through the uprights and bar, as described.

FRANCIS H. HAMBLETON.

Witnesses:

JAMES LAW STEUART, WM. HADDoN MARRIOTT. 

